M5.4 earthquake 182 km SW of Tual, Indonesia
A magnitude 5.4 earthquake struck 182 km SW of Tual, Indonesia on Thu, Apr 7, 1988, 1:30 AM GMT+9 (16:30 UTC), 41 km (25 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (Mw, moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1988-04-06 16:30:01 UTC
- Depth
- 40.6 km (25.2 mi), shallow
- Epicenter
- 6.587° S, 131.405° E
- Region
- Indonesia
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 5.4 | Mw, moment | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.41 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.4 | Mwc, centroid moment | Global CMT project | Preliminary |
What happened
The USGS’s account of the effects of this earthquake.
Felt (II) at Saumlaki. CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 14S, 26C Centroid Location: Origin Time 16:30: 6.3 0.4 Lat 6.43S 0.03 Lon 131.28E 0.05 Dep 45.6 3.9 Half-duration 2.0 Moment Tensor; Scale 10**17 Nm Mrr=0.29 0.05 Mtt=-0.75 0.05 Mff=0.46 0.09 Mrt=0.69 0.08 Mrf=0.68 0.08 Mtf=1.15 0.05 Principal Axes: (T) Val=1.75 Plg=33 Azm=304 (N) Val=-0.27 Plg=55 Azm=104 (P) Val=-1.48 Plg=9 Azm=208 Best Double Couple:Mo=1.6*10**17 NP1:Strike=341 Dip=60 Slip=162 NP2:Strike=80 Dip=74 Slip=31
From the USGS event page for usp0003erc. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.7160 km W of Tual, Indonesia · 14051 days ago · 114 km deep · 100 km away
- 4.2179 km WSW of Tual, Indonesia · 14038 days ago · 33 km deep · 24 km away
- 4.0253 km WSW of Tual, Indonesia · 14032 days ago · 122 km deep · 79 km away
- 5.0254 km WSW of Tual, Indonesia · 14004 days ago · 120 km deep · 78 km away
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0003erc (also filed as gcmtb040688a, gcmt19880406163002, iscgem440001). Read Fri, Oct 2, 2026, 7:58 PM UTC.